[feature request] Allow for specifying number padding to prevent menu icons shift

[ElSamhaa]

Whenever the stats numbers change from a single digit to multiple digit, the menu icons after the changed eul icon shift left and vice versa.

https://github.com/gao-sun/eul/assets/34912861/223b42f5-8d87-4fd7-bab2-ad06f534418c